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发表于 2007-3-9 14:41:30
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来自： 中国辽宁营口
用VBA画图方法
VBA源代码：- w. S3 {9 q8 f( w
& `4 d) G" o4 p' j; uSub A() '本程序以20圆的圆心为坐标原点 \% l1 t9 f+ b+ j
Dim Y As Double '左上方小圆圆心纵坐标1 h3 y9 v. x% t6 S" q9 P
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量% W2 |2 W8 m2 U; A& X1 O3 W+ k1 [
Dim R As Double '小圆半径
3 k( z3 ~# s3 h/ y5 y/ W, ?* W Dim O(2) As Double '坐标原点( R; Q* x j; q- F: n
Dim O1(2) As Double '左上方小圆圆心
+ u6 E' P3 o# ^$ `% R# d Dim O2(2) As Double '右上方小圆圆心
7 }' L3 }6 C- J% o+ K7 X; {" m Dim O3(2) As Double '右下方小圆圆心
: i+ M Z V/ U# d( I& O Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点$ f; U+ W4 V* J+ Q4 w9 c& g- e2 X
Y1 = 10 '迭代运算边界条件
2 P* U3 k. {3 c" b# s) y Y2 = 20* o, T# r: h) m& D
Do '计算合适的小圆圆心纵坐标 o0 n. a) b! Y& Y* E8 u: t
Y = (Y1 + Y2) / 2
. B& M" G" P5 P# C7 j" H B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)5 E" ?. C( d- y c! g3 a2 t
If B = 0 Then
5 L, ~3 ^& ?) ]. [$ b2 h. u Exit Do
( t$ |9 _' Y: k( S- j9 s6 Y ElseIf Y = Y1 Then/ V5 F0 N. s4 u/ Y1 f z. }$ z& o
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
/ @9 f% [; w7 |5 j6 S$ S! T If Abs(B1) < Abs(B) Then Y = Y2+ J- P+ A7 y3 d* Z
Exit Do
- a3 I6 I9 V! e: P) z0 t) @) O) A ElseIf Y = Y2 Then
& [, f9 [1 b) O+ n* i' I" L0 w B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)/ r. p5 `+ h; `9 B' c
If Abs(B1) < Abs(B) Then Y = Y1" X6 u) p! f: q8 `
Exit Do
' d- U e5 {) @ ElseIf B > 0 Then) u1 Z6 t J. v: M% }0 w
Y1 = Y" C( u3 d5 k) [+ C
Else
* \) O( i2 ]2 H! {$ X0 a Y2 = Y8 n* W3 f2 K1 U/ G* i6 k
End If
. V6 d0 v; j ?) R. V6 R Loop% P; N4 J- n7 J8 w
R = Y ^ 2 / 40 '小圆半径
! B+ K* d6 i+ J9 v. `5 J O1(0) = R - 101 r. {! d/ E8 J9 M+ h5 B- z
O1(1) = Y '各点赋值
/ ~, o! V% Q% A& l. g: | O2(0) = Sqr(0.5) * (10 + R); w2 |- f! J# t3 I& O7 P9 ~; p
O2(1) = O2(0)9 m5 S/ [6 g6 g$ C! a
O3(0) = O1(1)* g% X4 p' I% C! d' Y3 q
O3(1) = O1(0)
& v& X4 D4 `3 }4 P4 L7 p2 E P1(0) = -10
8 Q: g3 o0 X1 H. c8 l e P1(1) = -10# k3 k$ q( t4 c) t
P2(0) = -10
4 v' o) C5 n! [3 \ P2(1) = 20
D- ?7 `8 f- V. K9 V/ M P3(0) = 20/ E5 W( d6 Y4 f/ g
P3(1) = -10" N4 [* z& Y# l$ d8 ?. x- j8 D
With ThisDrawing+ G# a) S& T$ H2 a1 A
.ModelSpace.AddLine P1, P2 '画直线4 M2 j1 d4 k$ V2 z
.ModelSpace.AddLine P1, P3. D$ h z( F O. c
.ModelSpace.AddCircle O, 10 '画大圆
" ~# H0 Q; e4 Z: _ .ModelSpace.AddCircle O1, R '画三个小圆* U: P; o& n/ s- X4 u/ p4 v. c- P
.ModelSpace.AddCircle O2, R5 T3 ?& |4 v5 i
.ModelSpace.AddCircle O3, R3 Z/ g j0 ^) o/ c: C* F2 u
End With& G; i7 _* m4 r. ]8 I. X. P4 n0 E( i
End Sub |
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发表于 2007-3-9 09:43:24
发表于 2007-3-9 12:21:41
楼主
都好厉害，我没想到的都给想到了／
:L